An oxide always has at least one oxygen atom as well as at least one atom of a different element.
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All molecules are composed of atoms, so yes, atoms can always be found in molecules.
Not in this universe.
Oxygen, hydrogen, carbon and nitrogen
The atoms in iron are little groups that act like tiny magnets also found in nickel and cobalt!
Yes, both.The vast majority of atoms like to group with other atoms, but a few (e.g. Noble Gasses) like to be separated and alone.
Carbon and hydrogen atoms are always found in organic compounds. Additionally, organic compounds may also contain oxygen, nitrogen, sulfur, or other elements in smaller quantities.
Absolutely not. The vast majority are found in a combined state in nature. Iron is not found as metal but always as an ore of mixed oxides etc. The halogens and all group 1,2,3 metals are always found combined etc.
The most common groups of minerals on Earth include silicates, carbonates, oxides, sulfides, and sulfates. Silicates are the most abundant group, making up about 90% of the Earth's crust. Carbonates are commonly found in sedimentary rocks, while oxides, sulfides, and sulfates are often formed through chemical processes involving oxygen and sulfur.
Metallic oxide M2O3 is a chemical compound composed of two metal atoms (M) and three oxygen atoms. Some examples include aluminum oxide (Al2O3) and iron oxide (Fe2O3), which are commonly found in nature as minerals or as components of rust and clay. These oxides play important roles in various industrial processes and applications.
A neutron, although this is not always the case as there are hydrogen atoms with neutrons, but hydrogen atoms are the only one which are able to not have a neutron.
oxides of manganese, nickel, copper and iron